Answer:
(f ∘ f)(–1) = –1
Step-by-step explanation:
To solve a composite function, rewrite using brackets and solve from inside to outside.
(f ∘ f)(x) is the same as: f[f(x)]
Given that x = –1 in (f ∘ f)(–1), we are solving for:
f[f(–1)] = ?
Solve for f(–1) inside the square brackets first.
f(x) = x³
f(–1) = (–1)³ Simplify.
f(–1) = –1 Solved the inside.
Substitute f(–1) = –1 into the square brackets.
f[f(–1)] = f[–1]
Now, we can solve the outside.
Solve with the equation of the function, x³.
f[–1] = x³
f[–1] = [–1]³ Substitute x = –1.
f[–1] = (–1)³ Simplify.
f[–1] = –1 Final answer
Answer:
1. 135 2. 16.875
Step-by-step explanation:
1. 5 x 4.5 x 6 = 135
2. 2.5 x 2.25 x 3 = 16.875
Answer:
D.) 240 miles.
Step-by-step explanation:
By proportion the distance between the 2 cities
= (3 / 1/8) * 10
= 3*8*10
= 240 miles.
Answer:
1. y/4 = 15/20 or (y times 5)/20 = 15/20
Y = 3
Step-by-step explanation:
First, make sure the denominators are the same and then it will be up to multiplication and division.
Answer:
C
Step-by-step explanation:
Y values are from -4 to 8.
